SMAJ58A-QH

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TVS - Diodes

The SMAJ58A-QH is a type of transient-voltage-suppression (TVS) diode, which is a special kind of unidirectional (one-way) device that protects against voltage spikes, including those from electrostatic discharges (ESD). The SMAJ58A-QH is a very popular device for such applications due to its combination of low cost, small size, and quick response time.

Application Field of SMAJ58A-QH

The SMAJ58A-QH diode is most commonly used to protect against ESD attacks. It is often integrated within the system\'s circuitry to better protect the components, and is well suited for use in mobile devices and other high-reliability electronics.

It can also be used in automotive systems and industrial settings, as it is rated to handle transient voltages up to 26 V and is certified to the Automotive Electronics Council (AEC) standard for a Q100-qualified device. This makes it a suitable choice for use in applications that require automotive-grade protection and reliability.

The SMAJ58A-QH is also commonly used for general purpose TVS protection in electronic circuits. The diode is able to handle transients with a low clamping voltage, so it is well suited for protecting sensitive components.

Working Principle of SMAJ58A-QH

To understand the working principle of the SMAJ58A-QH, it is important to first understand how transient protection works. When sudden voltage spikes occur, the amount of current that flows to the device is limited by a surge protection diode. The SMAJ58A-QH is a type of TVS diode that works in this way. It functions by providing a low on-state resistance between the anode and cathode, allowing only a limited amount of current to flow during transients.

The SMAJ58A-QH is specifically designed to offer fast response to transient voltage spikes. It is a bidirectional device, meaning that it provides protection from both positive and negative transients. The device is also designed to offer low capacitance, which helps to reduce the amount of signal degradation caused by the protection device.

The SMAJ58A-QH diode features a low breakdown voltage that allows it to effectively clamp the voltage at very low levels during transients. This makes it a suitable choice for use in protecting sensitive components, as it is able to absorb a relatively large amount of energy while not allowing the voltage to rise above its clamping level.

Conclusion

The SMAJ58A-QH is a popular transient-voltage-suppression (TVS) diode that is used for a variety of applications. It is well suited for use in mobile devices and high-reliability electronics, as well as automotive applications that require automotive-grade protection and reliability. This diode is able to provide fast response to voltage spikes and a low capacitance value that helps to reduce signal degradation. Therefore, it is an effective device for protecting sensitive components from transients.

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